China's casting technology has a long history of 6000, is one of the earliest master casting technology of civilization one, 2500 years ago ( 513 B.C.) was cast out of 270Kg cast iron penal code. China's Shang manufacturing copper cashmere with iron blade, according to research at that time with the meteoric iron iron blade is forged, cast copper back then. China is the first application of cast iron is one of the countries, since the late Zhou Dynasty began to have cast iron, iron farm tools development is very rapid, Qin, Han Dynasty, our country farming mostly use of iron tools. Cultivated land plow, hoe, shovel, sickle, shows that China was very advanced casting production level, to the Song Dynasty China has been used for casting iron and casting of mines.
China in Shang Dynasty since has created splendid bronze culture, the so-called " living an extravagant life ", became the symbol of power and status of your family. In 1978 Hubei province with the county of a scholar Zeng Hou Yue tomb bronze weighing l0t, including 64 parts of a set of bronze bells, divided into eight groups, including accessories, copper up to 5t. The clock face cast with variant dragon and flowers, some as thin as hair, clock Gongzhu has gold inscription of more than 2800 characters, mark names, melody. Each bell made two tone, a positive sound of drums, one for the right drum sounds. Set of bells and wide range of five octaves, playing all kinds of music temperament accurate, harmonious, beautiful tone. Casting of high technological level, can say is our country ancient bronze casting masterpiece, this set of bells cast times, dating back to 2400 before the early Warring States period. Now in Beijing Big Bell Temple of the Ming Dynasty Yongle bell, cast in the Ming Yongle 18 years ( AD 1418 ~ 1422) before and after, the high 6.75m, the bell mouth diameter 3.3m, Zhong Chunhou 0.185m, weight 46.5t two according to research a mold for Nifan, core is divided into seven sections. To cast the bell button, and then make the bell button and cast into a whole body. Chemical analysis results:ω( Cu ) = 80.54%, w ( Sn ) = 16.4% and trace Zn, Fe, Si, Mg, Ca etc.. A cast full of inside and outside of the Scriptures, a total of about 22700 more than word. The clock still intact, elegant sweet voice, from the bell 15 ~ 20km can hear, is the world's rare antique one. Chinese ancient bell, Ding, stroke and other artifacts, there's a lot of investment casting, the complex process, the superb casting, casting fine, it is not difficult to see that our country ancient times the investment casting technology has reached a very high level.
In 1953 in Hebei province Xinglong county ancient Yanguo casting metallurgical mill ruins to explore, from 2200~ in 2350 found the Warring States period ( iron cast iron fan ) 87, can be used for casting iron hoes, axes of iron, iron sickles, iron chisels and vehicles, which is used for fixing the hoe on the square hole, through the core, fan is also the lateral left positioning and clamping lug. Shows early in the Warring States period, cast iron pieces in China has been widely used. Now in Hebei Province in Cangzhou iron lion, high 5m, long 6m, weighs 19.3t, is the year ninth Century five generations later Zhou Dynasty when cast . Now in the tower, composed of 13 stacked, weight 40t, cast in the Northern Song Dynasty Chunxi, in 500 B.C., China had already successfully applied the folding box casting technology to mass production of cast iron pieces. All of these show the world our country ancient times casting process and the level of skill.
Ancient China casting technology in the world advanced cavalcade. As a result of long feudal society are affecting the development of science and technology, block casting technology progress. Since the founding of new China 50 years, since the since the early nineteen fifties, almost from scratch, and gradually developed into a scale like this, success is huge. Now casting in China is a big industry, output ranked second in the world, an annual output of 10000000 - 12000000 T, factory point up to more than 2, worker 100 -130 million people, including engineering and technical staff accounted for about 3.5%, has become one of the national important foundation industry.
